Why Do Things Float? An Easy Lesson

For my "Why Do Things Float?" webpage: http://www.squidoo.com/why-do-things-float

Category:

Education

Tags:

• physics
• science
• project
• floatation
• displacement
• buoyancy
• density

[xSil3ntSkillz]

i bet lots of the veiws were from teachers

[lordadamson1]

thnx :) it helped

[Stickalas]

Remember Density (p)=mass(m)/volume(v)!

[2001cats]

Most of the people who saw this were probably sent by teachers.

[inescarlotaqm]

i think my teacher saw that

[Panthur6502]

This video uses a term like 'sinking power' but doesn't mention density. I know it's a reasonable explaination, but if a youngster is learning this stuff, let's teach them the correct terms.

[thuglord007]

thanks for the video and the conclusion in the end. if the displaced water (during to volume) is heavier than the object, the object floats. that really explains it

[UseAsDirected100]

I am confused for two reasons. First, it appears in your nice video that bouyancy is a function of volume displaced. So, if the balloon has the same volume as the balloon, than than the displacement is still 10 pounds. Since balloon weighs 0.02 pounds, it floats. But, at 2:34 it displaces 0.02 pounds, which effectively makes it weightless (would drift up and down). Second, why in 2:49 is the *entire* boat blue? It should displace only its hull or the red part. Anyhow, thanks.

[girlcanrock103]

that was alright but a tinsy bit boring...

but still helped!!!!!

[girlcanrock103]

that was alright but a tinsy bit boring...